CI: remove .app upload step (directory, not file; .dmg already contains it)

Author: Paururo

.github/workflows/build-gui-branch.yml

@@ -120,14 +120,6 @@ jobs:
           path: src-tauri/target/${{ matrix.rust_target }}/release/bundle/dmg/*.dmg
           retention-days: 14
 
-      - name: Upload artifacts (macOS .app)
-        if: startsWith(matrix.platform, 'macos')
-        uses: actions/upload-artifact@v4
-        with:
-          name: get_MNV-${{ matrix.label }}-app
-          path: src-tauri/target/${{ matrix.rust_target }}/release/bundle/macos/*.app
-          retention-days: 14
-
       - name: Upload artifacts (Linux .deb + .AppImage)
         if: matrix.platform == 'ubuntu-22.04'
         uses: actions/upload-artifact@v4